How to effectively treat wastewater in medical testing laboratories?
1.Wastewater classification: Wastewater is divided into two categories: acid and alkali wastewater and organic wastewater. Acid and alkali wastewater can be neutralized by adding acid or alkali, and organic wastewater needs to be treated with organic matter removal.
2.Adjust the pH value: Adjust the pH value of the wastewater to an appropriate range, generally controlled between 6-9. It can be conditioned with acids or bases, taking care to prevent excess acids or bases from entering the wastewater.
3.Removal of organic matter: Biological or chemical methods are used to remove organic matter from wastewater. Biological methods can use microbial degradation to remove organic matter, and chemical methods can remove organic matter by adding oxidants or adsorbents.
4.Removal of heavy metals: Precipitation or adsorption methods are used to remove heavy metal ions in wastewater. The precipitation method can use heavy metal ions to react with certain agents to form precipitates, thereby removing heavy metal ions;The adsorption method can use adsorbents such as activated carbon to adsorb heavy metal ions.
5.Disinfection treatment: Chlorination disinfection, ozone disinfection and other methods can be used to disinfect wastewater to kill bacteria, viruses and other microorganisms in wastewater.
6.Standard discharge: After the above treatment, the indicators of wastewater should meet the discharge standards before discharge.
The wastewater treatment of medical laboratory should select the appropriate treatment method according to the specific situation of the wastewater, and carry out a reasonable process combination. At the same time, the source control and management of wastewater should be strengthened, the generation and discharge of wastewater should be reduced, and the environmental awareness and sense of responsibility of the laboratory should be improved.